288 20 STREET is a mid-century 1931 building, 6 units in Park Slope, NYC. Owned by WONG, JON L.. Public records show 23 open violations, 36 311 complaints, 4 active litigation matters on file.
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Brooklyn · February 2026
Best & worst months to sign a lease
Potential savings: ~7% by timing your move to November.
Asking rent per bedroom type — switch tabs to see each with effective (concession-net) rent.
Monthly counts over the last 7 years · all data sources
(A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS.
(A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS.
§ 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR AT CEILING AND ALL WALLS IN THE KITCHEN LOCATED AT APT 1L, 1st STORY, 1st APARTMENT FROM EAST AT SOUTH
§ 27-2005 ADM CODE PROPERLY SECURE THE LOOSE LIGHT FIXTURE AT CEILING IN THE 3rd ROOM FROM NORTH LOCATED AT APT 1L, 1st STORY, 1st APARTMENT FROM EAST AT SOUTH
§ 27-2046.1, 2046.2 HMC: PROVIDE AN APPROVED AND OPERATIONAL CARBON MONOXIDE DETECTING DEVICE, INSTALLED IN ACCORDANCE WITH APPLICABLE LAW AND RULES. IN THE ENTIRE APARTMENT LOCATED AT APT 1L, 1st STORY, 1st APARTMENT FROM EAST AT SOUTH
Portfolio-level grade reflects the landlord's buildings across NYC, weighted by unit count. Individual building grades may differ.
View full landlord profileTop 1 by score · of 2 total
ACRIS deeds and regulatory filings
South Park Slope and the Gowanus borderlands offer the brownstone beauty of Park Slope with slightly more edge — the Gowanus Canal is being cleaned up, Old Stone House park hosts community events, and Fifth Avenue's bar and restaurant scene is unpretentious and local.
HPD Class A Violation — (A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR
FLOORING/STAIRS — FLOOR
FLOORING/STAIRS — FLOOR
ELECTRIC — OUTLET/SWITCH
DOOR/WINDOW — DOOR
PLUMBING — TOILET
PLUMBING — TOILET
PAINT/PLASTER — WALL
ELECTRIC — LIGHTING
GENERAL — CABINET